package cn.hdu.liang.interfaces;

interface A {
    void play();
}

interface B extends A {
    void play();
}

interface C extends A {
    void play();
}


public class Exam13 implements A, B, C {
    @Override
    public void play() {
        System.out.println("Exam13.play");
    }

    public static void main(String[] args) {
        (new Exam13()).play();
    }
}
